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comparing mass using density

Submitted by sugars225 on Thu, 10/01/2009 - 01:26

Which contains more mass, a sphere of gold with a diameter of 2.00cm, or a cube of lead measuring 2.00cm on each side? (dAu = 19.3 g/cm^3 and dPb = 11.34 g/cm^3

Work out the volume of the sphere ((4/3) x Pi x r3), and the volume of the cube.

Then as density = mass/volume, then mass = density x volume

Plug the densities in, and the volumes to find the masses of thetwo metals.